.maturity-panel {
  display: grid;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  background: var(--well);
}

.maturity-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.maturity-panel-head h2,
.maturity-panel-head h3 {
  max-width: none;
  margin: 4px 0 0;
  font-size: 20px;
}

.maturity-panel-head p {
  max-width: 72ch;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.maturity-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.maturity-card {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--raised);
}

.maturity-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.maturity-card h3,
.maturity-card h4 {
  margin: 0;
  font-size: 15px;
  line-height: 1.35;
}

.maturity-card > p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.55;
}

.maturity-badge {
  display: inline-flex;
  flex: none;
  align-items: center;
  padding: 4px 7px;
  border: 1px solid currentColor;
  color: var(--silver);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.maturity-badge[data-maturity="available-now"] {
  color: var(--ok, #7BA05B);
}

.maturity-badge[data-maturity="early-access"] {
  color: var(--gold);
}

.maturity-badge[data-maturity="design-partner-preview"] {
  color: var(--steel);
}

.maturity-badge[data-maturity="planned"] {
  color: var(--muted);
}

.maturity-card details {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.maturity-card summary {
  color: var(--silver);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .05em;
}

.maturity-card details p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.55;
}

.maturity-card details strong {
  color: var(--text);
}

.maturity-card a {
  display: inline-block;
  margin-top: 12px;
  color: var(--gold);
  font-size: 12px;
  text-underline-offset: 3px;
}

.maturity-state {
  color: var(--muted);
  font-size: 12px;
}

.maturity-state.error {
  color: var(--danger);
}

.maturity-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 900px) {
  .maturity-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .maturity-panel,
  .maturity-card {
    padding: 15px;
  }

  .maturity-panel-head,
  .maturity-card-head {
    display: grid;
  }

  .maturity-grid {
    grid-template-columns: 1fr;
  }
}